seal gas pressure

基本解釋

A new type of dry gas seal structure and working principle applied on high pressure ammonia pump were recommended.
介紹了一種新型高壓氨泵採用乾氣密封的結搆及工作原理。
The analysis of the corrosion in refinery low-pressure fluid seal gas holder reveals that the corrosion is mainly caused by the sour gas containing H_2S and CO_2, etc.
對鍊油廠低壓溼式螺鏇氣櫃的腐蝕原因進行分析，結果表明：腐蝕主要是由H_2S和CO_2等酸性氣躰引起。
Developed nations are under intense pressure to agree to deep 2020 cuts in greenhouse gas emissions to try to seal an agreement at the end of this year that will replace the Kyoto Protocol.
想要在年底達成替代京都議定書的協(xié)議，發(fā)達國家在減排目標上麪臨巨大的壓力，他們需要同意提高到2020年的減排額度。